JP2601873B2 - Machine for installing long members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an installation machine that arranges long members such as reinforcing bars, pipes, and beams in a predetermined form.

<Prior art> When making a solid foundation as in the foundation work of a nuclear power plant, for example, the diameter is about 50 mm, the length is about 10 m, the weight is about 150 kg, and the diameter is large and the weight is large. Heavy ones are arranged. As a machine capable of disposing the long member such as the reinforcing bar without such manual operation in such a work, the applicant of the present application has previously filed Japanese Patent Application No. 59-13.
No. 496 proposed a machine for installing long members. FIG. 5 is an external perspective view showing the above-mentioned conventional machine for disposing long members. In this drawing, reference numeral 1 denotes a long member to be provided, for example, a reinforcing bar, 2 denotes a main body of the mounting machine, and the main body 2 includes a traveling body 3 and a swing disposed on the traveling body 3. Body 4
From Numeral 5 is provided in the main body 2 to accommodate the rebar 1, 6 is a feeder capable of feeding the rebar 1 in the axial direction while holding the rebar 1, 7 is attached to the main body 2, and The arm is moved to the position of the storage unit 5 or moved to a position away from the storage unit 5.

In this arrangement machine, the traveling body 3 and the revolving body 4 are appropriately driven to travel and turn, and the arm 7 is contracted so that the rebar 1 accommodated in the accommodating portion 5 is grasped by the grasping portion of the feeding device 6. Then, the arm 7 is extended to dispose the feeder 6 at a desired position, the feeder 6 is driven to move the rebar 1 in the axial direction, and the grip is released, thereby eliminating the need for human power. Rebars can be arranged in a grid.

<Problem to be Solved by the Invention> Meanwhile, in the conventional machine for arranging long members configured as described above, the arm 7 is tentatively formed of an articulated boom as illustrated in FIG. In this case, even at the time of the maximum contraction, such as when gripping the reinforcing bar 1 in the storage section 5, the upper end of the bent arm 7 protrudes greatly in front of the storage section 5, and therefore, the upper end of the bent arm 7 is directly above the storage section 5. The work of arranging the reinforcing steel bar 1 in the accommodation part 5 becomes difficult, and there is a problem in the efficiency of the arranging work. When the arm 7 is made of the articulated boom illustrated in FIG. 5 as described above, the arm 7 protrudes greatly forward of the housing 5 even at the time of the maximum contraction. , That is, the space immediately before the storage unit 5 cannot be used as a work space for installation by the installation machine.

The present invention has been made in view of the above-described circumstances in the related art, and an object thereof is to release a restriction on a space directly above an accommodation unit by an arm and to suppress a forward projection of the arm from the accommodation unit. An object of the present invention is to provide a machine for disposing a measuring member.

<Means for Solving the Problems> In order to achieve this object, the present invention provides a housing provided in a main body having a traveling body and capable of housing a long member, and including the long member in an axial direction thereof. A feeding device that can be sent out, and an arm attached to the main body, the arm that moves the feeding device to the storage portion position, and moves to a position away from the storage portion position, wherein the arm is formed of a telescopic boom. The telescopic boom is provided with a retreating means for retreating the telescopic boom to the rear side of the main body, and an elevating device provided on the feeding device for elevating the elongate member.

<Operation> Since the present invention is configured as described above, the arm made of the telescopic telescopic boom is retracted to the rear side of the main body as needed, so that the arm does not reach directly above and in front of the housing portion. A space can be formed, and the work of arranging the long member in the storage unit can be performed efficiently, and a work space for arranging the long member by the arranging machine can be secured immediately before the storage unit. can do.

<Embodiment> Hereinafter, a machine for disposing a long member of the present invention will be described with reference to the drawings.

1 to 3 are explanatory views showing an embodiment of the present invention.
1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a side view showing a state at the time of arranging a reinforcing bar in a storage section.

In these drawings, particularly FIGS. 1 and 2, reference numeral 10 denotes a long member to be worked, for example, a reinforcing bar, 11 denotes a main body of the arranging machine. And the revolving superstructure 13 disposed in the main body. Reference numeral 14 denotes a turning wheel that connects the traveling body 12 and the revolving body 13. Reference numeral 15 denotes a storage portion which is fixed to the revolving structure 13 and is capable of storing the rebar 10, and is constituted by a feeder having feed means 17 capable of transferring the rebar 10 in the direction of arrow 16 in FIG. Reference numeral 18 denotes an arm attached to the revolving unit 13, for example, a telescopic telescopic boom.
And a second boom 20 that can be accommodated in the first boom 19;
It consists of a third boom 21 that can be accommodated in the second boom 20. A first cylinder 22 is attached to the first boom 19 and extends and contracts the second boom 20. A second cylinder 23 is accommodated and fixed in the second boom 20 and extends and contracts the third boom 21.
The length of the first boom 19 is set to the second boom 20.
Is set to be shorter than the length of
The boom 20 has an opening capable of projecting. Further, the first cylinder 22 is provided with a retreating means for retreating the telescopic boom 18 to the rear side of the main body 11, for example, such that the second boom 20 projects further rearward from the rear end of the first boom 19,
The second boom 20 and the third boom 21 constitute retreating means for retreating.

24 is a boom post fixed to the rear end of the revolving unit 13,
First boom 19 constituting telescopic boom 18 described above
The distal end is pivotally connected to the boom post 24 via a pin 25. A boom cylinder 27 has one end connected to the first boom 19 and the other end connected to the boom post 24 so as to be relatively rotatable. The above-mentioned pin 25 and boom cylinder 27 constitute a moving means for rotating the telescopic boom 18 vertically, that is, moving the telescopic boom 18.

Reference numeral 28 denotes a feeder connected to the tip of the telescopic boom 18, a horizontal beam 29 connected to the tip of the third boom 21, a slide beam 30 slidably provided on the horizontal beam 29, It comprises a drive motor 31 for driving the beam 30 and transports the rebar 10 in the direction of its axis, ie in the direction of the arrow 32 in FIG. Reference numeral 43 denotes an elevating device attached to both ends of the slide beam 30, that is, an elevating cylinder, and 44 is attached to the lower ends of these elevating cylinders 43.The lower end of the gripping device 44 is opened and closed by the operation of a cylinder (not shown), for example. The rebar 10 is gripped or released. Reference numeral 45 denotes a cab provided on the revolving superstructure 13. The above-mentioned feeding device 28 can be selectively connected to the third boom 21 via a bracket and a pin, for example. When the feeding device 28 is detached from the third boom 21, for example, a jib, A crane attachment consisting of a sheave, hook, rope and the like is connectable to the third boom 21.

Next, the operation in the embodiment configured as described above will be described.

First, when arranging the reinforcing bar 10 in the accommodation section 15, the first cylinder 22 and the second cylinder 23 are contracted by the maximum stroke as shown in FIG. As a result, the telescopic telescopic boom 18, ie, the second boom 20 and the third boom 21, are retracted to the rear side of the main body 11. At this time, the second boom 20
The rear end of the third boom 21 protrudes greatly from the opening at the rear end of the first boom 19, and the third boom 21 is mostly stored in the second boom 20. In this state, the feeding device 28, the lifting / lowering cylinder 43, and the gripping device 44 are located at the rear end of the accommodation portion 15, and
Therefore, the horizontal member of the telescopic boom 18 is not directly above and in front of the housing portion 15. Then, in such a state, as shown in FIG. 3, the reinforcing bar bundle 26 suspended by, for example, the hanging tool 51 is lowered from just above the accommodation portion 15 and the restraint of the reinforcing bar bundle 26 is released. Rebar 10
Is disposed on the accommodation unit 15.

And, for example, for the work of laying on the floor etc.,
As shown in FIG. 3, the third boom of the telescopic boom 18
The transverse beam 29 of the feeder 28 is connected to 21, and the traveling body 12 and the revolving body 13 are driven appropriately to perform traveling and revolving, thereby positioning the main body 11 of the construction machine. In this state, as illustrated in FIG. 3, the first cylinder 22 and the second cylinder 23 are contracted, and the elevating cylinder 43 attached to the feeding device 28 is positioned on the accommodation portion 15. During this time, the rebar 10 to be provided is positioned at a take-out position in front of the accommodation portion 15 by a feeding means built in the accommodation portion 15. In this state, the lifting cylinder 43 is lowered, and the rebar 10 is gripped by the gripping device 44. Then, conversely, the lifting cylinder 43 is raised, and the telescopic boom 18 is extended.
Is extended, whereby the feeder 28 is positioned above the position where the reinforcing bar 10 is to be disposed. Then, for example, at this time, the drive motor 31 of the feed device 28 is driven to slide the slide beam 30, and then the elevating cylinder 43 is moved down to release the gripping of the reinforcing bar 10 by the gripping device 44. Hereinafter, similarly, the reinforcing bars 10 are arranged in a zigzag shape at predetermined intervals, for example,
Further, by changing the arrangement direction by 90 ° and arranging the reinforcing bars 10 in a zigzag shape on the already-arranged reinforcing bar group, it is possible to form a lattice structure composed of stacked reinforcing bar groups.

In addition, the above-described arrangement work, that is, a planar arrangement work on a floor or the like is completed, and subsequently, a reinforcing bar arranged so as to penetrate the lattice-shaped structure in the up-down direction is performed. Therefore, when performing the work of lifting and lowering the rebar 10,
The feeder 28 is detached from the third boom 21 of the telescopic boom 18 and a crane attachment (not shown) is connected instead. The rebar is held by the crane attachment, the boom cylinder 27 is extended, and the telescopic telescopic boom 18 is moved upward, that is, the arrow 49 in FIG.
To the first cylinder 22 and the second cylinder 22
When the bar 23 is extended, the vertically suspended reinforcing bars 10 are arranged on the planned reinforcing bars of the already provided reinforcing bars, and the desired reinforcing bars are performed.

In the embodiment configured as described above, by retracting the telescopic telescopic boom 18, it is possible to solve the restriction of the telescopic boom 18, that is, the space directly above the housing portion 15 by the arm, and to reduce the telescopic telescopic boom. Boom 18
Can be prevented from projecting forward from the housing portion 15, whereby the work of arranging the reinforcing bar in the housing portion 15 from directly above the housing portion 15 can be efficiently performed, and the work immediately before the housing portion 15 can be performed. The bar arrangement work can be performed without any problem.

In addition, when arranging reinforcing bars on the floor or the like, basically, the linear movement of the telescopic boom 18 and the straight copper of the lifting cylinder 43 in a direction perpendicular to the linear movement of the feeder 28, that is, X,
The bar arrangement work can be performed by linear movement in three orthogonal coordinate systems in the Y and Z directions, and the positioning control of the gripping device 44 is easy. Excellent matching with position. It should be noted that such excellent matching properties are due to the rebar
This is particularly effective when 10 is not a linear shape and is formed in, for example, an arc shape, and a plurality of reinforcing bars 10 formed in an arc shape in this manner are aligned with a predetermined center of curvature, for example, continuously. In addition, the work of arranging in a plane can be easily performed in accordance with the operation feeling of the operator, that is, without causing a sense of inconsistency between up, down, left, right, and front and back.

FIG. 4 is a side view showing another embodiment of the present invention. In this embodiment, the telescopic telescopic boom 60 constituting the arm is constituted by a first boom 61 and a second boom 62 which can be contracted to the first boom 61, and a second boom 62 is provided. The cylinder 63 for expanding and contracting is stored and fixed in the first boom 61. Further, a boom post 64 to which a distal end of the first boom 61 is relatively rotatably connected is attached to the revolving unit 13 via a pin 65 so as to be relatively rotatable. A cylinder 66 is provided in parallel with the boom post 64 and has an upper end connected to the first boom 61 and a lower end connected to the revolving unit 13 via a pin 67 so as to be relatively rotatable. A boom post 64, a cylinder 68 whose lower end is relatively rotatably connected to the revolving unit 13 via a pin 69 are provided, and the above-described boom post 64, cylinders 66, 68, and pins 65, 67, 69 are provided.
A retracting means for retracting the telescopic boom 60 to the rear side of the main body 11 is constituted by
Also serves as moving means for rotating the telescopic boom 18 in the vertical direction.

Even in the case of such a configuration, by extending the cylinder 68 while the second boom 62 is contracted,
The telescopic boom 61 retracts to the rear side of the main body 11 via the boom post 64 and the cylinder 66.
A work space for accommodating the rebar 10 in the accommodation section 15 and a work space for disposing the rebar 10 on the floor or the like can be formed immediately above and in front of the telescopic boom 18, the feeding device 28, and the elevating cylinder 43. By operating the gripping device 44, the rebar 10 accommodated in the accommodation portion 15 can be arranged on a floor or the like, and a crane attachment is connected in place of the feed device 28 to extend the cylinder 66. Thereby, the reinforcing bar 10 can be lifted and lowered for a difference bar, etc., and the same effect as the embodiment shown in FIGS.

<Effects of the Invention> Since the machine for arranging the long member of the present invention is configured as described above, it is possible to release the restriction on the space immediately above the housing portion by the arm and suppress the arm from protruding from the housing blow. It is possible to perform the work of arranging the long member in the housing part from directly above the housing part and the work of arranging the long member on the floor or the like immediately before the housing part, and therefore, compared with the conventional case. Thus, the efficiency of installation work can be improved. effective.

[Brief description of the drawings]

1 to 3 are explanatory views showing one embodiment of a machine for arranging long members of the present invention. FIG. 1 is a plan view, FIG. 2 is a side view,
FIG. 3 is a side view showing a state at the time of work for arranging a reinforcing bar in a storage portion. FIG. 4 is a side view showing another embodiment of the present invention.
The figure is an external perspective view showing a conventional machine for disposing long members. 10 ... Reinforcing bar (long member), 11 ... Main body, 12 ... Running body,
13 ... Revolving body, 15 ... Housing part, 18, 60 ... Telescopic boom (arm), 19, 61 ... First boom, 20, 62 ... Second
Boom, 21 ... Third boom, 22 ... First cylinder, 23 ...
... Second cylinder, 24, 64 ... Boom post, 25 ... Pin, 27 ... Boom cylinder, 28 ... Feeding device, 29 ... Lateral beam, 30 ... Slide beam, 31 ... Drive motor, 43
…… Climbing cylinder (elevating device), 44… Grip device.

Continuing from the front page (72) Inventor Kazuo Mimatsu 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Inside the plant (72) Inventor Atsuhiko Kashima 650 Kandamachi, Tsuchiura-city, Ibaraki Pref. Inside the Tsuchiura Plant, Hitachi Construction Machinery Co., Ltd. (72) Inventor Muneo Yoshida 650, Kandachicho, Tsuchiura-shi, Ibaraki Pref.Hitachi Construction Machinery Engineering Co., Ltd.

Claims (2)

(57) [Claims] 1. A main body having a traveling body, a housing portion provided in the main body and capable of housing a long member, a feeding device capable of feeding the long member in an axial direction thereof, and mounted on the main body. In the machine for arranging a long member including an arm that moves the feed device to the housing portion position and an arm that moves to a position away from the housing portion position, the arm includes a telescopic boom, A machine for arranging a long member, comprising: a retreat means for retreating the telescopic boom to the rear side of the main body; and an elevating device provided on the feed device for elevating the elongate member. 2. The machine according to claim 1, wherein the main body has a revolving structure above the traveling structure.